Pangaea- a supercontinent that existed 300 million years ago. Continental drift- the movement of continents over time. fossil-any trace of an ancient organism that has been preserved in rock.
Outline
Summary
Africa and South America look like they fit together
The Theory of continental drift
Evidence from landforms
used mountains (Africa and South America)
used coalfields
Evidence from fossils
common fossils found on distant continents
Evidence from climate
continents today have very different climates from millions of years ago
glacier marks in Africa
Tropical plants in Spitsbergen
Scientists reject Wegener's theory
didn't have proof of how continents drifted
needed new explanations with what caused mountains and continents to form .
Table of Contents
1.3 Drifting Continents
Vocabulary
Pangaea- a supercontinent that existed 300 million years ago.
Continental drift- the movement of continents over time.
fossil-any trace of an ancient organism that has been preserved in rock.
Outline
Summary
The Theory of continental drift
Evidence from fossils
Evidence from climate
Scientists reject Wegener's theory